2D micro-CT scans of three different canola seeds, each preconditioned with a different treatment. The 2D scans depicted on the tempered column were taken from the same seed depicted on the control column. The only difference between both columns is that control scans were taken before treatment and tempered after preconditioning. A-1 and A-2 correspond to a seed tempered using the oven method; B-1 and B-2 correspond to a seed tempered using the microwave method; and C-1 and C-3 correspond to a seed tempered using the FBD method. C-3 is the same image as C-2 but enlarged to better visualize the gap between the hull and the embryo.